General Description

The MAXQ2000 microcontroller is a low-power, 16-bit device that incorporates a liquid-crystal display (LCD) interface that can drive up to 100 (-RBX/-RBX+) or 132 (-RAX/-RAX+/-RFX/-RFX+) segments. The MAXQ2000 is uniquely suited for the blood-glucose monitoring market, but can be used in any application that requires high performance and low-power operation

Features

♦ High-Performance, Low-Power, 16-Bit RISC Core

    DC to 20MHz Operation, Approaching 1MIPS per MHz

    Dual 1.8V Core/3V I/O Enables Low Power/Flexible Interfacing

    33 Instructions, Most Single Cycle

    Three Independent Data Pointers Accelerate Data Movement with Automatic Increment/Decrement

    16-Level Hardware Stack

    16-Bit Instruction Word, 16-Bit Data Bus

    16 x 16-Bit, General-Purpose Working Registers

    Optimized for C-Compiler (High-Speed/Density Code)

♦ Program and Data Memory

    32kWords Flash Memory, Mask ROM for High Volume Applications

    10,000 Flash Write/Erase Cycles

    1kWord of Internal Data RAM

    JTAG/Serial Boot Loader for Programming

♦ Peripheral Features

    Up to 50 General-Purpose I/O Pins

    100/132 Segment LCD Driver

        Up to 4 COM and 36 Segments

        Static, 1/2, and 1/3 LCD Bias Supported

        No External Resistors Required

    SPITM and 1-Wire® (-RAX/-RAX+/-RFX/-RFX+ Only) Hardware I/O Ports

    One or Two Serial UARTs

    One-Cycle, 16 x 16 Hardware Multiply/Accumulate with 48-Bit Accumulator

    Three 16-Bit Programmable Timers/Counters

    8-Bit, Subsecond, System Timer/Alarm

    32-Bit, Binary Real-Time Clock with Time-of-Day Alarm

    Programmable Watchdog Timer

♦ Flexible Programming Interface

    Bootloader Simplifies Programming

    In-System Programming Through JTAG

    Supports In-Application Programming of Flash Memory

♦ Ultra-Low-Power Consumption

    190µA typ at 8MHz Flash Operation, PMM1 at 2.2V

    700nA typ in Lowest Power Stop Mode

    Low-Power 32kHz Mode and Divide-by-256 Mode

Applications

    Medical Instrumentation

    Battery-Powered and Portable Devices

    Electrochemical and Optical Sensors

    Industrial Control

    Data-Acquisition Systems and Data Loggers

    Home Appliances

    Consumer Electronics

    Thermostats/Humidity Sensors

    Security Sensors

    Gas and Chemical Sensors

    HVAC

    Smart Transmitters